Unit 8- cell cycle and mitosis

Question 1

longest stage of the cell cycle

Answer 1

interphase

Question 2

3 parts of interphase

Answer 2

G1, S, G2 phase

Question 3

what happens in mitosis

Answer 3

the cell’s nucleus divides

Question 4

4 parts of mitosis

Answer 4

prohase, metaphase, anatphase, telophase

Question 5

what happens in G1

Answer 5

cellular content is duplicated

Question 6

what happens in S

Answer 6

46 chromosomes are duplicated (23 pairs)

Question 7

what happens in G2

Answer 7

double checks chromosomes for error

Question 8

what is chromatin

Answer 8

in interphase which is a long, stringy tangle of DNA

Question 9

what happens to the DNA when it enters prophase

Answer 9

it condenses and coils up to form chromosomes

Question 10

which phase are spindle fibers forming

Answer 10

prophase

Question 11

what is a centromere

Answer 11

a connection where 2 copies of DNA attach to eachother

Question 12

what are sister chromatids

Answer 12

2 copies of chromosomes

Question 13

what is generally happening in mitosis (division of___)

Answer 13

division of nucleus

Question 14

what is generally happening in cytokinesis (division of ____)

Answer 14

division of cytoplasm

Question 15

in what phase do chromosomes sperate

Answer 15

anaphase

Question 16

when do spindle fibers disappear

Answer 16

telophase

Question 17

the process a cell goes through each time it divides.

Answer 17

cell cylce

Question 18

cylindrical organelle that is near the nucleus in animal cells, in pairs, involved in the development of spindle fibers in cell division.

Answer 18

Centriole

Question 19

the process following the division of the nucleus, the cytoplasm and plasma membrane are divided, resulting in two cells

Answer 19

Cytokinesis

Question 20

Either of the two cells formed when a cell undergoes cell division by mitosis

Answer 20

Daughter cell

Question 21

A cell that is the source of other cells, as a cell that divides to produce two or more daughter cells.

Answer 21

Parent cell

Question 22

the process of the division of the nucleus in eukaryotic cells (body cells only). Usually includes four stages: prophase, metaphase, anaphase, and telophase.

Answer 22

Mitosis

Question 23

1st and longest phase of mitosis. Genetic material condenses to form chromosomes.

Answer 23

Prophase

Question 24

Phase of mitosis in which chromosomes move to the center of the cell and line up along the equator. Spindle fibers link the chromatids of each chromosome to opposite poles.

Answer 24

Metaphase

Question 25

the chromosomes move away from one another to opposite poles of the spindle.

Answer 25

Anaphase

Question 26

The last in the cell cycle Chromosomes separate pole to new nuclear membranes for spindle disassembles.

Answer 26

Telophase

Question 27

stands for prophase, metaphase, anaphase, and telophase.

Answer 27

PMAT

Question 28

The first growth phase of the cell cycle, consisting of the portion of interphase before DNA synthesis begins. The cell prepares for division and copies organelles.

Answer 28

G1 phase

Question 29

ensures that any errors in the chromosomes are repaired and that the cell is ready to proceed before it moves on to the next phase in the cycle.

Answer 29

G2 phase

Question 30

substage of interphase in which the cell copies its DNA in preparation for cell division.

Answer 30

S phase

Question 31

cell is neither dividing nor preparing to divide, or a distinct quiescent stage that occurs outside of the cell cycle.

Answer 31

G0 phase

Question 32

This is when the cell grows and copies its DNA

Answer 32

Interphase

Question 33

a protein structure that divides the genetic material in a cell.is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division

Answer 33

Spindle fibers

Question 34

formed by replication of a chromosome during the S phase of the cell cycle, are joined by a centromere, and segregate into separate daughter cells during anaphase.

Answer 34

Sister chromatid

Question 35

the point on a chromosome by which it is attached to a spindle fiber during cell division. chromatid. each of the two threadlike strands into which a chromosome divides longitudinally during cell division.

Answer 35

Centromere

Question 36

programmed cell death that follows a sequence of controlled step that lead to self-destruction.

Answer 36

Apoptosis